Agree with all the suggestions but just a tip that sometimes restaurants are, indeed, closed for T-Giving and the day after. Not sure about Chicago specifically but we’ve encountered that in other cities. There will no shortage of food in HP that weekend so this isn’t something to worry about - more an inconvenience than anything else. Stores will be open and students have gotten together to do some fun cooking as well as using the dining hall.
Edit to add: just call your eatery of interest to see what their T-Giving Thurs/Fri. schedule is.